Printing machine



FIG. 1 is a perspective view of the top, front and left end of a printing machine showing our new design;

FIG 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is an end elevational view of the left end thereof;

FIG. 5 is an end elevational view of the right end thereof; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for a printing machine, as shown. 